Dynabrade 95460 1/4-Inch NPT Original Aluminum Dynaswivel Air Line Connector, Silver Never fight an air hose again. For use with most air tools - Grinders, Sanders, Glue Guns, Staple Guns, Drills, Buffers, etc The Dynaswivel improves tool maneuverability, minimizes operator fatigue and extends hose life Aluminum construction Swivels 360-Degree at two pivot points allowing the air hose to drop directly to the floor while providing superb tool handling Industrial-rated for tough production performance